CVE-2025-6160: Client Database Management System SQLi Flaw

CVE-2025-6160 Overview

CVE-2025-6160 is a SQL injection vulnerability in SourceCodester Client Database Management System 1.0. The flaw resides in the /user_customer_create_order.php endpoint, where the user_id parameter is passed to a database query without proper sanitization. Remote attackers can manipulate the parameter to inject arbitrary SQL statements. No authentication is required, and the exploit has been publicly disclosed. The vulnerability maps to [CWE-89] SQL Injection and [CWE-74] Improper Neutralization of Special Elements in Output.

Critical Impact

Unauthenticated remote attackers can inject SQL through the user_id parameter to read, modify, or extract data from the application database.

Affected Products

• SourceCodester Client Database Management System 1.0
• File: /user_customer_create_order.php
• Vulnerable parameter: user_id

Discovery Timeline

• 2025-06-17 - CVE-2025-6160 published to NVD
• 2026-04-29 - Last updated in NVD database

Technical Details for CVE-2025-6160

Vulnerability Analysis

The vulnerability exists in the order creation workflow of SourceCodester Client Database Management System 1.0. The script /user_customer_create_order.php accepts a user_id request parameter and concatenates the value directly into a SQL query without parameterized statements or input validation. An attacker submitting crafted SQL syntax in user_id can break out of the original query context and execute attacker-controlled SQL against the backend database.

The attack is performed over the network and requires no privileges or user interaction. Because the vulnerable endpoint handles order creation, attackers may read records, enumerate users, exfiltrate sensitive client data, or modify business records depending on the database user's privileges.

Root Cause

The root cause is the absence of prepared statements and input sanitization when handling the user_id parameter. The application trusts client-supplied input and concatenates it into a SQL query string. This violates secure coding practices for database interaction and creates a classic [CWE-89] SQL injection condition.

Attack Vector

An unauthenticated remote attacker sends an HTTP request to /user_customer_create_order.php with a malicious user_id value. Typical payloads include UNION-based injection to extract data, boolean-based blind injection to enumerate records, or time-based blind injection when responses are not directly reflected. Public proof-of-concept material has been referenced in the GitHub CVE Issue Tracker and the VulDB advisory.

The vulnerability is exploited through standard HTTP requests. No specialized tooling is required beyond a web client or automated tools such as sqlmap. Refer to the linked advisories for technical details and indicators.

Detection Methods for CVE-2025-6160

Indicators of Compromise

• HTTP requests to /user_customer_create_order.php containing SQL meta-characters such as ', ", --, UNION, SELECT, SLEEP(, or INFORMATION_SCHEMA in the user_id parameter.
• Unusually long or URL-encoded user_id values in web server access logs.
• Database errors, stack traces, or 500 responses originating from the order creation endpoint.
• Spikes of requests to the endpoint from a single source IP, consistent with automated injection tooling.

Detection Strategies

• Deploy web application firewall (WAF) signatures that detect SQL injection patterns against the user_id parameter of the order creation endpoint.
• Enable database query logging and alert on syntactically anomalous queries originating from the web application service account.
• Correlate access logs with database logs to identify requests that trigger long-running or error-producing queries.

Monitoring Recommendations

• Monitor outbound data volume from the database host for signs of bulk extraction.
• Track failed and successful authentication events that occur immediately after suspicious requests to /user_customer_create_order.php.
• Alert on unexpected schema discovery activity such as queries referencing INFORMATION_SCHEMA.TABLES or INFORMATION_SCHEMA.COLUMNS.

How to Mitigate CVE-2025-6160

Immediate Actions Required

• Restrict public exposure of the affected application until a fix is in place, using network ACLs or a reverse proxy with authentication.
• Deploy WAF rules that block SQL injection payloads targeting the user_id parameter on /user_customer_create_order.php.
• Review database accounts used by the application and revoke any privileges beyond what the application requires.
• Audit access logs for evidence of prior exploitation and rotate any credentials that may have been exposed.

Patch Information

At the time of publication, no vendor advisory or official patch from SourceCodester is referenced in the available data. Consult the SourceCodester Security Resources page and the VulDB advisory for vendor updates. Organizations should remediate by modifying the application source to use parameterized queries (prepared statements) for all database operations involving user_id and other user-supplied parameters.

Workarounds

• Modify /user_customer_create_order.php to use prepared statements with bound parameters (for example, mysqli_prepare or PDO with bindParam) instead of string concatenation.
• Enforce strict server-side input validation, restricting user_id to expected numeric values before any database interaction.
• Apply the principle of least privilege to the database account used by the application, removing rights to INFORMATION_SCHEMA access and write operations where not needed.
• Place the application behind a WAF with SQL injection protection enabled until source-level fixes are deployed.

# Example WAF rule (ModSecurity) to block SQLi patterns on the vulnerable endpoint
SecRule REQUEST_URI "@beginsWith /user_customer_create_order.php" \
    "phase:2,deny,status:403,id:1006160,\
    chain,msg:'CVE-2025-6160 SQLi attempt on user_id'"
    SecRule ARGS:user_id "@detectSQLi" \
        "t:none,t:urlDecodeUni"